1268461285 has 24 divisors (see below), whose sum is σ = 1906878456. Its totient is φ = 802892160.

The previous prime is 1268461253. The next prime is 1268461291. The reversal of 1268461285 is 5821648621.

It can be written as a sum of positive squares in 4 ways, for example, as 295083684 + 973377601 = 17178^2 + 31199^2 .

It is not a de Polignac number, because 1268461285 - 2⁵ = 1268461253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195946 + ... + 202315.

It is an arithmetic number, because the mean of its divisors is an integer number (79453269).

Almost surely, 2^1268461285 is an apocalyptic number.

It is an amenable number.

1268461285 is a deficient number, since it is larger than the sum of its proper divisors (638417171).

1268461285 is a wasteful number, since it uses less digits than its factorization.

1268461285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398293 (or 398286 counting only the distinct ones).

The product of its digits is 184320, while the sum is 43.

The square root of 1268461285 is about 35615.4641272580. The cubic root of 1268461285 is about 1082.4946007230.

The spelling of 1268461285 in words is "one billion, two hundred sixty-eight million, four hundred sixty-one thousand, two hundred eighty-five".